#include <stdio.h>
#include <stdlib.h>

int add(int a,int b)
{
  return a+b;
}
int main(int argc, char **argv)
{
  int a;
  int b;
  if(argc != 3){
    printf("Usage: %s <val1><val2>\n",argv[0]);
    return -1;
  }
  a= (int)strtol(argv[1],NULL,0);
  b= (int)strtol(argv[2],NULL,0);

  printf("%d + %d = %d \n",a,b,add(a,b));
  return 0;
}